Access Your U.S. Bank Accounts From Anywhere

Living outside the United States shouldn’t prevent you from accessing your banking, financial, and online services. SLYNUMBER gives you a real U.S. mobile number that works worldwide, just like AT&T, or Verizon - so you can keep receiving calls, texts, and verification codes wherever you are.

Man receiving a bank verification code on his U.S. number

SLYNUMBER app provides a real U.S. mobile number that works anywhere in the world 🌎 allowing users to receive verification codes, security alerts, and account notifications without expensive roaming plans or traditional U.S. carriers.

A real U.S. mobile number

Since SLYNUMBER is a real mobile number, it works with U.S. banks, payment platforms, and online services:

  • Security verification
  • Login authentication
  • Verification codes
  • Two-factor authentication (2FA)
  • Fraud alerts & account notifications
Woman smiling at her phone showing her U.S. mobile number

Why International Users Choose SLYNUMBER

  • Use Your U.S. Number Anywhere

    Stay connected while living or traveling abroad.

  • Receive Verification Codes Reliably

    Access authentication messages from U.S. banks and online platforms.

  • No SIM Card Required

    Stay connected while living or traveling abroad.

  • Avoid International Roaming Costs

    No expensive roaming plans or second devices needed.

  • Fast & Easy Setup

    Get started in minutes from virtually anywhere in the world. It is an app that works on your existing phone.

More than a number

SLYNUMBER includes modern communication tools designed for global users:

Inbound & outbound calling

Call friends and family worldwide.

Text messaging

Text any number worldwide from your SLYNUMBER.

Spam call filtering

Say goodbye to unwanted callers.

Voicemail with transcription

A custom voicemail for your new phone number.

Caller ID & caller name

Customize your caller name so others know who’s calling.

Global data eSIM option

Pay-as-you-go global eSIM with data in 140+ countries.

Mobility Unbound

SLYNUMBER transforms the mobile number into a global digital identity that moves with you.
No borders. No roaming limitations. No dependence on physical SIM cards. Just your number — anywhere in the world.

Get started today
Woman in a city using her U.S. number to receive a bank verification code